JP5432759B2 - stapler - Google Patents

Description

  The present invention relates to a stapler capable of binding paper sheets and the like with a relatively weak force.

  There is a stapler as a stationery for spelling paper, and this stapler is indispensable as office supplies. Such a stapler requires more force to operate the stapler as the number of papers bound at a time increases. Therefore, various proposals have been made in order to bind with a weak force even when the number of sheets to be bound is large.

  For example, in Japanese Patent No. 3900495 (Patent Document 1), a base (base frame) having a support piece erected at the rear end portion and a pressing blade (needle pressure lowering rod) at the front end portion are provided on the base. An operation member (operation frame) pivotally attached to the rear end portion, and a rear end portion that is pivotable to the support portion of the base at a position above the pivot attachment portion between the operation member and the base. A stapler comprising a handle (handle frame) pivotally attached to one end of a link member (intermediate piece) that pivots and moves to an intermediate portion in the front-rear direction. Has been made.

  According to the invention of this Patent Document 1, when the handle is rotated toward the base, the pivoting portion of the handle and the base is the fulcrum, the tip of the handle is the force point, and the pivoting of the handle and the link member is performed. The part works as a point of action and can be spelled with a weak force by the principle of lion.

Japanese Patent No. 3900495

  In the above-described invention, although it can be spelled with a weak force due to the principle of the lever, since the number of components is large and the shape of each component is complicated, it takes time to assemble the product and the manufacturing cost. There was a problem of rising. Accordingly, an object of the present invention is to provide a stapler which can be spelled with a relatively weak force, has a small number of parts, and can be easily assembled.

  The stapler of the present invention includes a base having a support piece standing on the side portion of the rear end, a handle pivotally mounted near the upper end of the support piece, and perpendicular to the vertical direction and the front-rear direction. A plate-like member having a thickness direction as a direction to be operated, a rotatable operation member having a push blade and connected to the handle via a link member, and a magazine having a magazine. A housing that is freely pivotally mounted and is pivotally mounted on the support piece below the portion on which the handle is pivotally mounted, and is provided between the operation member and the intermediate plate of the housing. In addition, a return spring is disposed between the bottom plate of the housing and the base.

  In the stapler of the present invention, the magazine is housed in a space between the intermediate plate and the bottom plate of the housing so as to be slidable in the front-rear direction, and the vicinity of the rear end is detachable by a magazine locking member. It is locked.

  Furthermore, in the stapler of the present invention, the magazine includes a needle delivery mechanism and is biased forward by the needle delivery mechanism, and the magazine locking member is disposed at the rear of the housing so as to cover the rear of the housing. It is arranged via a return spring and is pivotally mounted under the rear end of the housing so as to be rotatable.

  According to the present invention, it is possible to provide a stapler which can be spelled with a relatively weak force, has a small number of parts, and can be easily assembled.

1 is an external perspective view of a stapler according to an embodiment of the present invention. It is an external appearance perspective view in the state where the cover of the stapler was removed. It is an external appearance perspective view of the state which removed the cover of the said stapler, and permeate | transmitted one part. It is a disassembled perspective view of the said stapler. It is a cross-sectional schematic diagram of the stapler. It is an external appearance perspective view of the housing with which the said stapler is provided. It is an external appearance perspective view of the 1st housing with which the said stapler is provided. It is a cross-sectional schematic diagram in the state which the base of the said stapler and the main action part contact | abutted. It is a cross-sectional schematic diagram in the state which the operation member of the said stapler rotated in the housing.

  Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings. As shown in FIGS. 1 to 3, the stapler 1 according to the present embodiment includes a base 2 positioned below and covered with a base cover 29, and a first shaft 33 relative to the base 2. A handle 3 that is freely attached to a shaft, a rotatable operation member 5 that has a push blade 51 and is connected to the handle 3 via a link member 7, and the operation member 5 that rotates via a second shaft 57. And a housing 6 that is rotatably attached to the base 2 and is rotatably attached to the base 2. A first return spring 55 is disposed between the intermediate plate 6e of the housing 6 and the operation member 5 to bias the operation member 5 upward, and between the lower surface plate 6f of the housing 6 and the base 2. The second return spring 65 that urges the housing 6 upward is disposed.

  The base 2 includes a needle bending portion 23 that bends the leg portion of the binding needle in the vicinity of the front end, and includes support portion pieces 21 that are erected from both side edges in the vicinity of the rear end. The handle 3 is pivotally mounted near the upper end of the support piece 21, and the housing 6 is pivotally mounted below the portion where the handle 3 is pivoted and near the rear end. Has been.

  The handle 3 is a member that drives the operating member 5 via the link member 7, and is formed so that the lower part is an opening and the cross section is substantially U-shaped and extends in the front-rear direction. Further, the handle 3 is pivotally attached to the support piece 21 of the base 2 through the first shaft 33 at a position near the rear end. Further, the link member 7 is pivotally attached by a third shaft 75 at a position near the front of the portion of the handle 3 that is pivotally attached to the support piece 21. The handle 3 is covered with a handle cover 37 at the periphery.

  The link member 7 is a member that links the handle 3 and the operation member 5 together. As shown in FIG. 4, the link member 7 includes a handle-side shaft-attaching portion 7 a that is rotatably attached to the handle 3, and an operation-member-side shaft-attaching portion that is rotatably attached to the operation member 5. 7b. The operation member side shaft attachment portion 7b has two leg portions extending from the handle side shaft attachment portion 7a, and a shaft hole is formed at the tip of the two leg portions. That is, the link member 7 has an oval side shape and a shape in which the operation member 5 is sandwiched between the two leg portions.

  As shown in FIG. 3, the link member 7 is pivotally attached to the handle 3 by the third shaft 75 in a state where the handle side shaft receiving portion 7 a is inserted into the opening below the handle 3. It is worn. Further, the link member 7 is disposed so that the operation member side shaft attachment portion 7b straddles the operation member 5, and is rotatably attached by the operation member 5 and the fourth shaft 77.

  As shown in FIG. 4, the operation member 5 is a flat plate that extends in the vertical direction and the front-rear direction and has a thickness direction in the direction perpendicular to the vertical direction and the front-rear direction. This is a member that is operated toward the needle bent portion 23. The operating member 5 is provided with a pressing blade 51 in the vicinity of the front end, and is pivotally attached to the housing 6 by a second shaft 57 in the vicinity of the rear end. In addition, a link member 7 is pivotally attached by a fourth shaft 77 at a position near the front of the portion that is axially attached to the housing 6. Further, at the lower position in the vicinity of the rear of the position where the pressing blade 51 is mounted, as shown in FIG. 3, it is arranged between an intermediate plate 6e of the housing 6 described later and biases the operating member 5 upward. A first return spring 55 is mounted. Further, as shown in FIG. 5, the operation member 5 is housed in the housing 6 in the vicinity of the front end, and the front upper end portion is in contact with the vicinity of the front end in the housing 6 to restrict upward movement. Has been.

  That is, the operation member 5 is pivotally attached to the housing 6 in a state in which the operation member 5 is biased upward by the first return spring 55 and the upward movement is restricted at the front end portion. Therefore, the operation member 5 can be rotated downward against the elastic force of the first return spring 55.

  As shown in FIG. 6, the housing 6 has a first housing 61 and a second housing 62 that are substantially symmetrical to each other, and are fixed by fitting protrusions formed on the respective edges. It is formed by. The housing 6 has a magazine housing portion 6a in which a magazine 41 is housed below, and a locking member shaft mounting portion 6b on which a magazine locking member 31 shown in FIG. And has an operation member disposing portion 6c on the upper side. Further, the housing 6 has a protrusion 6d that is pivotally attached to the support piece 21 of the base 2 at a side surface near the rear end. Furthermore, the housing 6 has an elastic body attaching portion 6k to which a third return spring 35 disposed between the housing 6 and the magazine locking member 31 is mounted.

  As shown in FIG. 7, when the magazine 41 is accommodated in the housing 6, the magazine accommodating portion 6a includes an intermediate plate 6e that seals the upper portion of the magazine 41, and is parallel to the intermediate plate 6e. Is formed between the lower surface plate 6f for holding the magazine 41. In addition, a support rail 6p on which a rear end protrusion 45a of a later-described needle pushing member 45 is located extends from the lower surface of the intermediate plate 6e from the vicinity of the front end to the vicinity of the rear end at the center in the width direction. A contact wall 6q is formed at the front end portion of the support rail 6p so as to form a step so as to restrict the forward sliding of the needle pressing member 45. Further, a spring shaft fixing portion 6g to which the spring shaft 46 of the magazine 41 is fixed is formed near the rear end of the magazine housing portion 6a. The operation member disposing portion 6c is a space formed above the intermediate plate 6e, and has a bearing portion 6m on which the operation member 5 is pivotally mounted near the rear end.

  The magazine 41 is accommodated in the magazine accommodating portion 6a of the housing 6 so as to be slidable in the front-rear direction. The magazine 41 is a front loading type in which a staple can be loaded by projecting forward from the housing 6, and the staple can be driven out by accommodating the magazine 41 in the housing 6.

  The magazine 41 is a U-shaped member having an opening at the top. As shown in FIG. 5, a punching hole 41a is formed at the front end of the bottom surface, and a locking opening is formed near the rear end of the bottom surface. 41b is formed. The locking opening 41b is a portion where the rear end edge is locked to a magazine locking portion 31a of a magazine locking member 31 described later. In the magazine 41, a staple feeding mechanism for feeding the loaded staple to the front end is formed. Further, a magazine head 43 serving as a gripping portion when the magazine 41 is pulled forward from the magazine housing portion 6a is disposed at the front end portion of the magazine 41.

  The staple feeding mechanism includes a slidable needle pressing member 45, a coil spring 47, and a spring shaft 46 around which the coil spring 47 is wound. The needle pressing member 45 has an opening through which the spring shaft 46 is inserted, and has a rear end protrusion 45a that operates forward and backward along the support rail 6p provided on the lower surface of the intermediate plate 6e of the housing 6 above the rear end. doing. The needle pressing member 45 is slidably disposed in the magazine 41 while being inserted through the spring shaft 46. The spring shaft 46 is fixed to the spring shaft fixing portion 6g of the housing 6 in a state where the opening of the needle pressing member 45 is inserted. Further, the coil spring 47 is wound around the spring shaft 46 between the spring shaft fixing portion 6g of the housing 6 and the needle pressing member 45, and biases the needle pressing member 45 forward.

  The magazine locking member 31 is a member that locks the magazine 41 in the vicinity of the rear end, and is disposed behind the housing 6 via a third return spring 35 so as to cover the rear of the housing 6. As shown in FIG. 4, the magazine locking member 31 includes a magazine locking portion 31a formed so as to protrude forward from the vicinity of the lower end, and a protrusion 31b formed on the side of the magazine locking portion 31a. . The magazine locking member 31 is pivotally attached to the locking member shaft attachment portion 6b by the protrusion 31b in a state where the upper end is inserted below the rear end of the handle cover 37. Further, the magazine locking member 31 is locked to the rear end edge of the locking opening 41b of the magazine 41 in the vicinity of the front end of the magazine locking portion 31a.

  The magazine locking member 31 is pressed in the direction of the housing 6 against the third return spring 35 when the magazine locking portion 31a and the rear end edge of the locking opening 41b of the magazine 41 are locked. And pivots downward about the protrusion 31b. When the magazine locking member 31 rotates, the magazine locking portion 31a is detached from the rear edge of the locking opening 41b, the magazine 41 is pushed forward by the coil spring 47, and the magazine 41 is moved forward from the magazine housing portion 6a. Jump out. At this time, the needle pressing member 45 also slides forward in the magazine housing portion 6a of the housing 6, but the rear end protrusion 45a contacts the contact wall 6q provided on the lower surface of the intermediate plate 6e of the housing 6 and moves forward. Therefore, the needle pressing member 45 does not jump forward from the magazine housing portion 6a. Then, when the magazine 41 protruding forward is accommodated in the housing 6 and the locking opening 41b of the magazine 41 comes above the magazine locking portion 31a of the magazine locking member 31, the magazine locking member 31 is moved to the third position. The magazine engaging portion 31a is engaged with the rear end edge of the engaging opening 41b by being biased by the return spring 35 and rotating upward.

  Next, the operation mechanism of the stapler 1 of this embodiment will be described. If a force to rotate the base 2 and the handle 3 in the direction of the housing 6 is applied, the second return spring 65 is positioned closer to the rotation shaft (behind the stapler 1) than the first return spring 55. Therefore, as shown in FIG. 8, the second return spring 65 contracts before the first return spring 55, and the base 2 is formed between the protrusion 6d of the housing 6 and the base 2 shown in FIGS. The support part piece 21 is pivoted around a pivoting part, and the needle bent part 23 of the base 2 comes into contact with the vicinity of the front end of the magazine 41.

  When a force to further rotate the base 2 and the handle 3 in the direction of the housing 6 is applied, since the base 2 and the magazine 41 are in contact near the front end, further rotation of the base 2 is restricted, The handle 3 is rotated toward the housing 6 side. When the handle 3 rotates to the housing 6 side, as shown in FIG. 9, the link member 7 is pushed by the handle 3 and moves to the housing 6 side, and the operation member 5 is rotated downward.

  Then, the operating member 5 rotates within the housing 6 while contracting the first return spring 55 around the second shaft 57, and the front end portion of the operating member 5 approaches the intermediate plate 6e. As a result, the lower end of the pressing blade 51 mounted in the vicinity of the front end of the operation member 5 comes into contact with one binding needle located at the front end in the magazine 41, and this one binding needle passes through the launch hole 41 a of the magazine 41. It strikes toward the needle bent portion 23 of the base 2 and comes into contact with the needle bent portion 23, and the leg portion of the staple is bent.

  After the spelling, when the base 2 and the handle 3 are opened, the operation member 5 is rotated upward by the elastic force of the first return spring 55, and the base member is rotated by the elastic force of the second return spring 65. Since the base 2 rotates downward with respect to the housing 6, the state shown in FIG. 5 is restored.

  In other words, the stapler 1 of the present embodiment is loaded with a load to rotate the handle 3 with the portion of the first shaft 33 on which the handle 3 and the support piece 21 of the base 2 are pivotally attached as a fulcrum. That is, a paper sheet or the like is bound with a weak force by the lever principle with the portion near the front end of the handle 3 as a force point and the portion of the third shaft 75 on which the handle 3 and the link member 7 are pivotally attached. be able to.

  According to the stapler 1 of the present embodiment, the housing 6 that accommodates the magazine 41 and the like is used as a member of a link mechanism that is interlocked when performing spelling, thereby reducing the number of parts compared to the conventional art. Stapler 1 can be manufactured. Further, since the number of parts is small, the stapler 1 having a simple configuration can be provided. That is, in the conventional stapler, the cover is only a member for covering the members constituting the link mechanism, but in the stapler 1 of the present embodiment, the number of parts can be reduced by using the housing 6 as the link mechanism. it can.

  In addition, in many conventional staplers, a magazine, an operation member, and a handle are pivotally attached to a base, but in the stapler 1 of this embodiment, the handle 3 and the housing 6 are the base. As a result, the stapler 1 having a completely different shape from the conventional stapler can be provided.

  Furthermore, by using the magazine 41 as a front loading type, it is possible to provide a stapler 1 having a simple configuration, and the magazine locking member 31 that locks the magazine 41 is used as a member that covers the back of the magazine 41. By arranging it, it was possible to realize a front loading type operation mechanism without increasing the number of parts.

  Further, in the conventional stapler, the operation member is often a U-shaped member having an opening at the bottom, and there is a problem that the manufacturing cost increases due to the complicated shape and the manufacturing takes time. However, in the stapler 1 of the present embodiment, since the operation member 5 is a flat plate member, the manufacturing becomes easy, and the effects of reducing the manufacturing cost and the manufacturing time can be obtained.

1 Stapler 2 Base
3 Handle 5 Operation member
6 Housing 6a Magazine housing
6b Locking member shaft attachment part 6c Operation member placement part
6d Protrusion 6e Intermediate plate
6f Bottom plate 6g Spring shaft fixing part
6k Elastic body mounting part 6m Bearing part
6p Support rail 6q Abutment wall
7 Link member 7a Axle part on handle side
7b Operating member side shaft mounting part 21 Support part piece
23 Needle bent part 29 Base cover
31 Magazine locking member 31a Magazine locking part
31b Protrusion 33 First shaft
35 Third return spring 37 Handle cover
41 Magazine 41a Launch hole
41b Locking opening 43 Magazine head
45 Needle pusher 45a Rear end protrusion
46 Spring shaft 47 Coil spring
51 Push blade 55 First return spring
57 Second shaft 61 First housing
62 Second housing 65 Second return spring
75 3rd axis 77 4th axis

Claims (3)

A base on which a support piece is erected on the side portion of the rear end, a handle that is pivotally mounted near the upper end of the support piece, and a direction perpendicular to the vertical direction and the front-rear direction is the thickness direction. A rotatable operation member that has a push blade and is connected to the handle via a link member, and a magazine that has a magazine and is pivotally attached to the operation member. And a housing pivotally mounted on the support piece below the portion on which the handle is pivotally mounted,
A stapler, wherein a return spring is disposed between the operation member and the intermediate plate of the housing, and between a lower surface plate of the housing and the base.   The magazine is accommodated in a space between the intermediate plate and the bottom plate of the housing so as to be slidable in the front-rear direction, and the rear end vicinity is detachably locked by a magazine locking member. The stapler according to claim 1. The magazine includes a needle delivery mechanism and is biased forward by the needle delivery mechanism;
The magazine locking member is disposed behind the housing via a return spring so as to cover the rear of the housing, and is pivotally mounted below the rear end of the housing. The stapler according to claim 2.

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